167664 -OEChem-02060822392D 1 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 Cs 4 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 137 M END > 0 > 0 > 167664 > 3 > ChemIDplus > 010045973 > 10045-97-3 CESIUM 137 Caesium-137 Cesium, isotope of mass 137 Cesium-137 > 10045-97-3 > 010045973 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=010045973 > 5486527 1 $$$$